91814411016 has 48 divisors (see below), whose sum is σ = 255384686700. Its totient is φ = 29777645952.

The previous prime is 91814410993. The next prime is 91814411033. The reversal of 91814411016 is 61011441819.

It can be written as a sum of positive squares in 2 ways, for example, as 91478422116 + 335988900 = 302454^2 + 18330^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17229771 + ... + 17235098.

Almost surely, 2^91814411016 is an apocalyptic number.

It is an amenable number.

91814411016 is an abundant number, since it is smaller than the sum of its proper divisors (163570275684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91814411016 is a wasteful number, since it uses less digits than its factorization.

91814411016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34464918 (or 34464911 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The spelling of 91814411016 in words is "ninety-one billion, eight hundred fourteen million, four hundred eleven thousand, sixteen".